MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 9295ce88660ed117b7cfff0886232a51dc6492bf6100738957bf93fabdb74bb8. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

Formbook

Vendor detections: 10

Intelligence 10 IOCs YARA 2 File information Comments

SHA256 hash:	9295ce88660ed117b7cfff0886232a51dc6492bf6100738957bf93fabdb74bb8
SHA3-384 hash:	71e7c7def2361da6c3e9d3979177735146fbbfde514d9d51ce87ea862e58a21c69c5d1e81fe040e85abc927fab6ba6c3
SHA1 hash:	d8113a5a36efe929cd0d08bf7f524a3dea9f7950
MD5 hash:	3c5077999100dd0819114ec2f1611b21
humanhash:	violet-fruit-autumn-leopard
File name:	PO#9943441.pdf.exe
Download:	download sample
Signature	Formbook Create hunting rule
File size:	906'752 bytes
First seen:	2020-08-17 08:56:51 UTC
Last seen:	2020-08-17 10:08:32 UTC
File type:	exe
MIME type:	application/x-dosexec
imphash	f34d5f2d4577ed6d9ceec516c1f5a744 (48'648 x AgentTesla, 19'452 x Formbook, 12'201 x SnakeKeylogger)
ssdeep	12288:1S1QbvgWK5WpLyDNlsYKPg1k4FGEE280ky:0QbvxaWQN/vCEEb
TLSH	7015EC133281CCDFDCF3BDFB20B466A751EBF5922B8C45E9535D93A61A20C1EB5A9009
Reporter	abuse_ch
Tags:	exe FormBook

abuse_ch

Malspam distributing Formbook:

HELO: slot0.stauboi.com
Sending IP: 45.95.168.229
From: import and export department <orderss@stauboi.com>
Reply-To: import and export department <orderss@stauboi.com>
Subject: order PO#9943441
Attachment: PO9943441.pdf.rar (contains "PO#9943441.pdf.exe")

Intelligence

File Origin

# of uploads :

# of downloads :

Origin country :

n/a

Vendor Threat Intelligence

Detection:

Formbook

Link:

https://www.capesandbox.com/analysis/46845/

Detection(s):

SecuriteInfo.com.Formbook.25229.18468.UNOFFICIAL

Result

Verdict:

Malware

Maliciousness:

Behaviour

Creating a window

Creating a file in the %temp% subdirectories

Sending a UDP request

Creating a file

Creating a process from a recently created file

Launching a process

Launching cmd.exe command interpreter

Unauthorized injection to a recently created process

Unauthorized injection to a recently created process by context flags manipulation

Unauthorized injection to a system process

Result

Threat name:

FormBook

Detection:

malicious

Classification:

troj.evad

Score:

80 / 100

Link:

https://www.joesandbox.com/analysis/432968

Signature

Allocates memory in foreign processes

Initial sample is a PE file and has a suspicious name

Injects a PE file into a foreign processes

Malicious sample detected (through community Yara rule)

Tries to detect virtualization through RDTSC time measurements

Uses an obfuscated file name to hide its real file extension (double extension)

Writes to foreign memory regions

Yara detected FormBook

Behaviour

Behavior Graph:

Download SVG

Detection:

formbook

Link:

https://mwdb.cert.pl/sample/9295ce88660ed117b7cfff0886232a51dc6492bf6100738957bf93fabdb74bb8/

Threat name:

ByteCode-MSIL.Trojan.Kryptik

Status:

Malicious

First seen:

2020-08-17 04:13:42 UTC

AV detection:

22 of 29 (75.86%)

Threat level:

5/5

Detection(s):

Malicious file

Link:

https://check.spamhaus.org/check/?searchterm=skk45cdgb3irpn6p74eimizkkhogjev7meahhckxx6j7vpnxjo4a._file

Verdict:

malicious

Result

Malware family:

formbook

Score:

10/10

Tags:

agilenet rat persistence spyware trojan stealer family:formbook

Link:

https://tria.ge/reports/200817-ns8e7cth5s/

Behaviour

Modifies Internet Explorer settings

Suspicious behavior: EnumeratesProcesses

Suspicious behavior: MapViewOfSection

Suspicious use of AdjustPrivilegeToken

Suspicious use of FindShellTrayWindow

Suspicious use of SendNotifyMessage

Suspicious use of WriteProcessMemory

Drops file in Program Files directory

Suspicious use of SetThreadContext

Adds Run key to start application

Loads dropped DLL

Obfuscated with Agile.Net obfuscator

Reads user/profile data of web browsers

Executes dropped EXE

Formbook Payload

Formbook

Malware Config

C2 Extraction:

http://www.iskovlay.com/gdo/

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

1.00

Link:

https://yomi.yoroi.company/submissions/9295ce88660ed117b7cfff0886232a51dc6492bf6100738957bf93fabdb74bb8

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	Formbook Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect Formbook in memory
Reference:	internal research

Rule name:	win_formbook_auto Create hunting rule
Author:	Felix Bilstein - yara-signator at cocacoding dot com
Description:	autogenerated rule brought to you by yara-signator